EP 0766711 A1 19970409 - FOAMING METHOD
Title (en)
FOAMING METHOD
Title (de)
VERFAHREN ZUM VERSCHÄUMEN EIENR MISCHUNG AUS EINEM STYROLPOLYMER UND EINEM AKRYLPOLYMER
Title (fr)
PROCEDE DE PREPARATION D'ARTICLES EN MOUSSE
Publication
Application
Priority
- GB 9501315 W 19950607
- GB 9412725 A 19940624
- GB 9412726 A 19940624
Abstract (en)
[origin: US5898039A] PCT No. PCT/GB95/01315 Sec. 371 Date May 8, 1997 Sec. 102(e) Date May 8, 1997 PCT Filed Jun. 7, 1995 PCT Pub. No. WO96/00257 PCT Pub. Date Jan. 4, 1996A process for forming a foamed article having a closed cell structure without the need to use a halogenated blowing agent. In the process, a polymer blend comprising at least 50% by weight of a styrenic polymer and up to 50% by weight of an acrylic polymer which has an average molecular weight which is less than 90% of that of the styrenic polymer and a hydrocarbon blowing agent are supplied to a heated extruder where the blend is formed and the blowing agent incorporated to form a molten mixture from which the foamed article is formed on release from the extruder.
IPC 1-7
IPC 8 full level
C08J 9/12 (2006.01); B29C 47/00 (2006.01); B32B 5/18 (2006.01); C08J 9/00 (2006.01); C08J 9/14 (2006.01); C08J 9/34 (2006.01); C08L 25/04 (2006.01); C08L 25/06 (2006.01); C08L 33/04 (2006.01); B29K 25/00 (2006.01); B29K 105/04 (2006.01); C08L 33/06 (2006.01)
CPC (source: EP US)
C08J 9/0061 (2013.01 - EP US); C08J 9/34 (2013.01 - EP US); C08L 25/06 (2013.01 - EP US); C08J 2325/04 (2013.01 - EP US); C08J 2433/00 (2013.01 - EP US); C08L 33/06 (2013.01 - EP US); Y10T 428/249987 (2015.04 - EP US)
C-Set (source: EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9600257 A1 19960104; AT E172218 T1 19981015; AT E177453 T1 19990315; AU 2625795 A 19960119; AU 2677595 A 19960119; CA 2192168 A1 19960104; CA 2192169 A1 19960104; CN 1066752 C 20010606; CN 1071355 C 20010919; CN 1151170 A 19970604; CN 1151171 A 19970604; DE 69505381 D1 19981119; DE 69505381 T2 19990408; DE 69508243 D1 19990415; DE 69508243 T2 19990909; EP 0766710 A1 19970409; EP 0766710 B1 19981014; EP 0766711 A1 19970409; EP 0766711 B1 19990310; ES 2122622 T3 19981216; ES 2128738 T3 19990516; GR 3029652 T3 19990630; JP H10502117 A 19980224; JP H10502118 A 19980224; US 5898039 A 19990427; US 6063485 A 20000516; WO 9600256 A1 19960104
DOCDB simple family (application)
GB 9501315 W 19950607; AT 95921055 T 19950606; AT 95921890 T 19950607; AU 2625795 A 19950606; AU 2677595 A 19950607; CA 2192168 A 19950606; CA 2192169 A 19950607; CN 95193749 A 19950607; CN 95193757 A 19950606; DE 69505381 T 19950606; DE 69508243 T 19950607; EP 95921055 A 19950606; EP 95921890 A 19950607; ES 95921055 T 19950606; ES 95921890 T 19950607; GB 9501304 W 19950606; GR 990400559 T 19990311; JP 50289896 A 19950606; JP 50290196 A 19950607; US 76584997 A 19970508; US 76585097 A 19970508